27855220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15649}}^1$

素因数の和:15747

約数の個数: 24

約数和(自身を含む): 59157000

約数和(自身を除く): 31301780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 15649, 31298, 62596, 78245, 156490, 312980, 1392761, 2785522, 5571044, 6963805, 13927610, 27855220]

約数ペア:

[(1, 27855220), (2, 13927610), (4, 6963805), (5, 5571044), (10, 2785522), (20, 1392761), (89, 312980), (178, 156490), (356, 78245), (445, 62596), (890, 31298), (1780, 15649)]